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CVSS: 10.0EPSS: 0%CPEs: 3EXPL: 0

28 Jun 2022 — In the nsTArray_Impl::ReplaceElementsAt() function, an integer overflow could have occurred when the number of elements to replace was too large for the container. This vulnerability affects Firefox < 102, Firefox ESR < 91.11, Thunderbird < 102, and Thunderbird < 91.11. En la función nsTArray_Impl::ReplaceElementsAt(), podría haber ocurrido un desbordamiento de enteros cuando la cantidad de elementos a reemplazar era demasiado grande para el contenedor. Esta vulnerabilidad afecta a... • https://bugzilla.mozilla.org/show_bug.cgi?id=1497246 • CWE-190: Integer Overflow or Wraparound •

CVSS: 10.0EPSS: 0%CPEs: 3EXPL: 1

28 Jun 2022 — The Mozilla Fuzzing Team reported potential vulnerabilities present in Thunderbird 91.10. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 102, Firefox ESR < 91.11, Thunderbird < 102, and Thunderbird < 91.11. El equipo Mozilla Fuzzing informó sobre posibles vulnerabilidades presentes en Thunderbird 91.10. Algunos de estos errores mostraron evidencia de corrupción ... • https://bugzilla.mozilla.org/buglist.cgi?bug_id=1763634%2C1772651 • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') CWE-416: Use After Free •

CVSS: 10.0EPSS: 0%CPEs: 3EXPL: 0

28 Jun 2022 — An iframe that was not permitted to run scripts could do so if the user clicked on a javascript: link. This vulnerability affects Firefox < 102, Firefox ESR < 91.11, Thunderbird < 102, and Thunderbird < 91.11. Un iframe al que no se le permitía ejecutar scripts podría hacerlo si el usuario hacía clic en un enlace javascript:. Esta vulnerabilidad afecta a Firefox < 102, Firefox ESR < 91.11, Thunderbird < 102 y Thunderbird < 91.11. The Mozilla Foundation Security Advisory... • https://bugzilla.mozilla.org/show_bug.cgi?id=1768537 • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') CWE-829: Inclusion of Functionality from Untrusted Control Sphere •

CVSS: 7.8EPSS: 0%CPEs: 4EXPL: 0

28 Jun 2022 — A malicious website that could create a popup could have resized the popup to overlay the address bar with its own content, resulting in potential user confusion or spoofing attacks.
*This bug only affects Thunderbird for Linux. Other operating systems are unaffected.*. This vulnerability affects Firefox < 102, Firefox ESR < 91.11, Thunderbird < 102, and Thunderbird < 91.11. Un sitio web malicioso que podría crear una ventana emergente podría haber cambiado el tamaño de la ventana emergente para superpo... • https://bugzilla.mozilla.org/show_bug.cgi?id=1745595 • CWE-451: User Interface (UI) Misrepresentation of Critical Information CWE-1021: Improper Restriction of Rendered UI Layers or Frames •

CVSS: 7.8EPSS: 0%CPEs: 3EXPL: 0

19 Jun 2022 — An attacker could have injected CSS into stylesheets accessible via internal URIs, such as resource:, and in doing so bypass a page's Content Security Policy. This vulnerability affects Firefox ESR < 91.11, Thunderbird < 102, Thunderbird < 91.11, and Firefox < 101. Un atacante podría haber inyectado CSS en hojas de estilo accesibles a través de URI internos, como recurso:, y al hacerlo eludir la Política de seguridad de contenido de una página. Esta vulnerabilidad afecta a Firefox ESR < 91.11, Thunderbir... • https://bugzilla.mozilla.org/show_bug.cgi?id=1757604 • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') •

CVSS: 10.0EPSS: 0%CPEs: 3EXPL: 0

02 Jun 2022 — A crafted CMS message could have been processed incorrectly, leading to an invalid memory read, and potentially further memory corruption. This vulnerability affects Thunderbird < 91.10, Firefox < 101, and Firefox ESR < 91.10. Un mensaje CMS manipulado podría haberse procesado incorrectamente, lo que habría provocado una lectura de memoria no válida y, potencialmente, una mayor corrupción de la memoria. Esta vulnerabilidad afecta a Thunderbird < 91.10, Firefox < 101 y Firefox ESR < 91.10. The Mozil... • https://bugzilla.mozilla.org/show_bug.cgi?id=1767590 • CWE-457: Use of Uninitialized Variable CWE-908: Use of Uninitialized Resource •

CVSS: 7.8EPSS: 0%CPEs: 3EXPL: 0

02 Jun 2022 — An attacker could have exploited a timing attack by sending a large number of allowCredential entries and detecting the difference between invalid key handles and cross-origin key handles. This could have led to cross-origin account linking in violation of WebAuthn goals. This vulnerability affects Thunderbird < 91.10, Firefox < 101, and Firefox ESR < 91.10. Un atacante podría haber aprovechado un ataque de sincronización enviando una gran cantidad de entradas allowCredential y detectando la diferencia entr... • https://bugzilla.mozilla.org/show_bug.cgi?id=1730434 • CWE-203: Observable Discrepancy CWE-829: Inclusion of Functionality from Untrusted Control Sphere •

CVSS: 10.0EPSS: 0%CPEs: 3EXPL: 0

02 Jun 2022 — Mozilla developers Andrew McCreight, Nicolas B. Pierron, and the Mozilla Fuzzing Team reported memory safety bugs present in Firefox 100 and Firefox ESR 91.9. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Thunderbird < 91.10, Firefox < 101, and Firefox ESR < 91.10. Los desarrolladores de Mozilla, Andrew McCreight, Nicolas B. • https://bugzilla.mozilla.org/buglist.cgi?bug_id=1760765%2C1765610%2C1766283%2C1767365%2C1768559%2C1768734 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') CWE-125: Out-of-bounds Read CWE-416: Use After Free CWE-787: Out-of-bounds Write •

CVSS: 10.0EPSS: 0%CPEs: 3EXPL: 0

02 Jun 2022 — A malicious webpage could have caused an out-of-bounds write in WebGL, leading to memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 91.10, Firefox < 101, and Firefox ESR < 91.10. Una página web maliciosa podría haber provocado una escritura fuera de los límites en WebGL, lo que habría provocado daños en la memoria y un bloqueo potencialmente explotable. Esta vulnerabilidad afecta a Thunderbird < 91.10, Firefox < 101 y Firefox ESR < 91.10. The Mozilla Fo... • https://bugzilla.mozilla.org/show_bug.cgi?id=1743767 • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') CWE-787: Out-of-bounds Write •

CVSS: 10.0EPSS: 0%CPEs: 3EXPL: 0

02 Jun 2022 — When exiting fullscreen mode, an iframe could have confused the browser about the current state of fullscreen, resulting in potential user confusion or spoofing attacks. This vulnerability affects Thunderbird < 91.10, Firefox < 101, and Firefox ESR < 91.10. Al salir del modo de pantalla completa, un iframe podría haber confundido al navegador sobre el estado actual de la pantalla completa, lo que podría generar confusión en el usuario o ataques de suplantación de identidad. Esta vulnerabilidad afecta a Thun... • https://bugzilla.mozilla.org/show_bug.cgi?id=1756388 • CWE-290: Authentication Bypass by Spoofing CWE-1021: Improper Restriction of Rendered UI Layers or Frames •